[Elecraft] K2 # 4498 - Electrostatic protection

F5UL ars.f5ul at wanadoo.fr
Fri Jan 21 11:15:28 EST 2005


I'm in a very stormy country (Northern Alps) and we have at least once per month a thunderstorm that already cost me one pair of power Xstors (in my TS-130 - $380!!!) so even with $5 each TO220 part, I did not want to loose them, or at least reduce the chance to loose them.

So I instaled on the KAT2 control board an RF Chock (1 mH) and an NE2 neon bulb wired between K18-pin 3/8 and ground just to establish a direct lway to ground for static electricity (via the chock) and in case of a virulent one turn on the NE2 and establish a full short to ground. 

Up to now I did not constat any loss of performance, either in transmission or reception and not changes in the KAT2 function.
So...

73 to all and also a very heavy thank to all on the list, even if I do not use the information, it is a nice place to wander (hi!)

F5UL/Robert


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